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Arsenic uptake by plants and possible phytoremediation applications: a brief overview
Stockholm University, Faculty of Science, Department of Botany.
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2012 (English)In: Environmental Chemistry Letters, ISSN 1610-3653, E-ISSN 1610-3661, Vol. 10, no 3, 217-224 p.Article, review/survey (Refereed) Published
Abstract [en]

This review focuses the behaviour of arsenic in plant-soil and plant-water systems, arsenic-plant cell interactions, phytoremediation, and biosorption. Arsenate and arsenite uptake by plants varies in different environment conditions. An eco-friendly and low-cost method for arsenic removal from soil-water system is phytoremediation, in which living plants are used to remove arsenic from the environment or to render it less toxic. Several factors such as soil redox conditions, arsenic speciation in soils, and the presence of phosphates play a major role. Translocation factor is the important feature for categorising plants for their remediation ability. Phytoremediation techniques often do not take into account the biosorption processes of living plants and plant litter. In biosorption techniques, contaminants can be removed by a biological substrate, as a sorbent, bacteria, fungi, algae, or vascular plants surfaces based on passive binding of arsenic or other contaminants on cell wall surfaces containing special active functional groups. Evaluation of the current literature suggests that understanding molecular level processes, and kinetic aspects in phytoremediation using advanced analytical techniques are essential for designing phytoremediation technologies with improved, predictable remedial success. Hence, more efforts are needed on addressing the molecular level behaviour of arsenic in plants, kinetics of uptake, and transfer of arsenic in plants with flowing waters, remobilisation through decay, possible methylation, and volatilisation.

Place, publisher, year, edition, pages
2012. Vol. 10, no 3, 217-224 p.
Keyword [en]
Arsenic toxicity, Bioremediation, Biosorption, Translocation, Bioconcentration, Bioaccumulation
National Category
Chemical Sciences
URN: urn:nbn:se:su:diva-81591DOI: 10.1007/s10311-011-0349-8ISI: 000307547000002OAI: diva2:562686


Available from: 2012-10-25 Created: 2012-10-25 Last updated: 2012-10-25Bibliographically approved

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